Aergo is developing an SQL based smart contract platform that will allow developers to more easily share data and create DApps. Their platform will combine elements of public and private blockchain architectures and will have a hybrid BFT/dPoS consensus mechanism. The ERGO Hub will serve as a blockchain hosting service that will allow users to test and deploy their own blockchains. Their network is currently powered by the Etherem-based AERGO token.

Nethereum is an open source .NET integration library for Ethereum. It is designed to help developers easily integrate the Ethereum blockchain into their .NET applications. It consists of modular libraries for features that are covered are writing smart contracts, cryptographic wallets, DApps, and managing blockchain data.

Nxt is a blockchain platform developed by Jelurida, which is also developing the Ardor blockchain. Nxt's goal is to improve upon existing blockchain platforms with a modular toolset that enables users to create their own digital assets that can be listed on decentralized marketplaces. Nxt also features community driven voting mechanisms and has an architecture that separates the blockchain into parent and child blockchains.
The network is powered by the NXT token and has a Proof-of-Stake (PoS) consensus mechanism.